Amco International is a fictional importer of handcrafted leather and reptile skin handbags from India. The Indian company that sells these handbags will ship these handbags only in order sizes of 120 units. The cost of placing an order from this Indian company is US$1,440. The annual demand for these handcrafted bags is 4,000 units. Determine the holding cost per unit that Amco needs to achieve to minimize its total cost